Frost dates by ZIP code: The nearest NOAA stations to your ZIP, 1991-2020 normals
Enter a five-digit ZIP code. PlainClimate finds its center (Census Bureau 2024) and the five nearest NOAA stations with frost dates, and shows each station's last spring and first autumn 32°F dates with its distance and elevation.
Frost dates near ZIP 26505
The USDA's 2023 Plant Hardiness Zone Map puts ZIP 26505 in zone 7a (the coldest night of a typical year: 0 to 5°F).
The nearest station, Morgantown, WV, is 2 miles from the ZIP's center: its last spring frost comes after April 23 in half of years and after May 14 in one year in ten. By the USDA's method its plant hardiness zone is 7a.
| Station | Distance | Elevation | Last frost (median) | 1 in 10 after | First frost (median) | Hardiness zone |
|---|---|---|---|---|---|---|
| Morgantown, WVMorgantown Municipal Airport | 2 mi | 1,240 ft | April 23 | May 14 | October 24 | 7a |
| Morgantown Lock and Dam, WV | 3 mi | 825 ft | April 26 | May 12 | October 23 | 7a |
| Point Marion, PAPoint Marion Lock 8 | 5 mi | 810 ft | April 30 | May 17 | October 23 | – |
| Lake Lynn, WV | 7 mi | 900 ft | April 25 | May 13 | October 24 | – |
| Grays Landing, PA | 9 mi | 800 ft | April 28 | May 14 | October 21 | 6b |
Frost comes later in spring at higher and colder stations and earlier in low, open ground: prefer a station at a similar elevation to yours. Hardiness zone in the table: the USDA's rule (the average of each year's coldest night, 1991-2020) applied to the station's own record.
Every frost threshold at Morgantown
NOAA publishes the dates for several temperatures and odds. A 30% spring date means a 3-in-10 chance of a later frost (the convention almanacs use); 50% is the median; 10% the cautious date.
| Threshold | Spring, 10% | Spring, 30% | Spring, 50% | Spring, 90% | Autumn, 50% | Autumn, 10% |
|---|---|---|---|---|---|---|
| 36°F (light frost) | May 23 | May 12 | May 4 | April 19 | October 13 | September 30 |
| 32°F | May 14 | May 1 | April 23 | April 7 | October 24 | October 11 |
| 28°F (hard freeze) | April 30 | April 18 | April 10 | March 27 | November 4 | October 22 |
| 24°F | April 13 | April 4 | March 31 | March 13 | November 15 | November 1 |
Source: NOAA NCEI 1991-2020 annual normals; ZIP centers: Census Bureau 2024 Gazetteer; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026. Autumn 10%: one year in ten has its first frost before this date.